Donatoni Macchine
Technical troubleshooting sheet Emergency diagnostic procedure

PE0027INTERNAL WATER MISSING

Before proceeding, carefully read the

SAFETY INSTRUCTIONS

DescriptionInternal water input signal missing

SeverityMedium03 / 05

Authorized personnelMachine operator

Required PPE:

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Description

This alarm is related to the absence of the internal-water pressure-switch input signal during an automatic cycle.

The pressure switches are located in this position and are of two types:

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Symptoms

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Possible causes

There are several possibilities:

  1. Actual lack of water;

  2. Pressure switch set to a water pressure that is too high;

  3. Faulty pressure switch;

  4. Fault in the connections between the pressure switch and the electrical cabinet.

Possible solutions

  1. Check the cause of the lack of water; it may simply be a pressure drop.

  2. Adjust the pressure switch to the required pressure. To adjust the pressure switches, follow the adjustment procedure for the relevant pressure-switch type EUROSWITCH or IFS (IFS datasheet);

  3. Replace the pressure switch, preferably with one of the same type;

  4. Check by following the

    ELECTRICAL DIAGRAM
;